JP2004263448A - Fireproof wooden wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To diffuse a wooden building by realizing a wooden wall which satisfies fire resistance efficiency based on the Building Standard Law. <P>SOLUTION: This fireproof wooden wall 10 is constructed of a wooden framework body 1 which is constituted by combining a sill 1a, a jamb 1b and a head 1c with one another, a first gypsum board 2 which is stuck on the indoor-side surface of the framework body 1, an aluminum sheet 3 which is stuck on the indoor-side surface of the gypsum board 2, and a second gypsum board 4 which is stuck on the indoor-side surface of the aluminum sheet 3. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a wooden wall having fire resistance performance.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a wall structure of a wooden building, as shown in FIG. 2, a gypsum board 110 having a predetermined thickness is provided on a room side surface of a wooden frame 100 as a structure that satisfies quasi-fire resistance according to the Building Standard Law. (For example, see Non-Patent Document 1).
The wooden frame assembly 100 includes a lower frame 101 nailed and fixed on a floor slab, a plurality of vertical frames 102 erected on the lower frame 101 at predetermined intervals, and attached to an upper end of the vertical frame 102. And the upper frame 103 provided. The gypsum board 110 has a predetermined thickness of a single layer or a plurality of layers, and is attached so as to cover the indoor side surface of the framework 100. FIG. 2 shows an example in which the gypsum board 110 is composed of two layers, that is, a first gypsum board 111 and a second gypsum board 112.
[0003]
According to such a wall structure, in the event of a fire, the water of crystallization contained in the gypsum board 110 changes into water vapor due to the heat of the fire, consuming heat energy, and thus the fire can be stopped for a certain period of time. Therefore, by appropriately adjusting the thickness of the gypsum board 110, a quasi-refractory structure according to the Building Standards Act can be obtained.
[0004]
[Non-patent document 1]
Gypsum Board Industry Association, (See "How do you construct?", "Types and Standards of Gypsum Board Products"), [online], [Search February 17, 2003], Internet <URL: http: // www. gypsumboard-a. or. jp / use2. https>
[0005]
[Problems to be solved by the invention]
However, in the case of fire-resistant walls that require performance exceeding the quasi-fire-resistant structure, it is usual to use a metal frame, and there have been fire-resistant walls using wooden frames. Did not. Therefore, there is a problem that the scale and the use of a building that can be constructed with a wooden structure are greatly restricted.
[0006]
The present invention has been made in view of the above points, and it is an object of the present invention to achieve the spread of wooden buildings by realizing a wooden wall satisfying fire resistance performance according to the Building Standards Law.
[0007]
[Means for Solving the Problems]
The fire-resistant wooden wall according to the present invention includes a wooden frame assembly formed by combining an upper frame, a lower frame, and a vertical frame, a first gypsum board adhered to the indoor side surface of the frame assembly, and An aluminum sheet adhered to the indoor side surface of the gypsum board and a second gypsum board adhered to the indoor side surface of the aluminum sheet.
[0008]
According to this structure, the heat of the fire is radiated to the indoor side due to the radiation insulation function of the aluminum sheet disposed between the first gypsum board and the second gypsum board, and the heat transmitted to the inside of the wall is reduced. I do. Thereby, the temperature rise inside the wall can be suppressed, and the frame assembly can be made of wood.
[0009]
The terms “quasi-fire-resistant structure”, “fire-resistant structure”, and “fire-resistant performance” used herein have the same meanings as those defined in Article 2 of the Building Standards Act and Article 107 of the Building Standards Law Enforcement Order. is there.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a partially cutaway perspective view showing one embodiment of the present invention, and shows a case where a partition wall for partitioning a room has a fireproof structure.
[0011]
In this embodiment, as shown in FIG. 1, the refractory wooden wall 10 includes a frame 1 serving as a skeleton, a first gypsum board 2 attached to a surface of the frame 1 on the indoor side, and The first gypsum board 2 includes an aluminum sheet 3 adhered to the indoor side surface of the gypsum board 2, and a second gypsum board 4 adhered to the indoor side surface of the aluminum sheet 3. Hereinafter, each of these components will be described in detail.
[0012]
(1) Framework 1
The frame assembly 1 is a rectangular frame member in a front view, and includes a lower frame 1a installed on a floor slab and a plurality of vertical frames 1b, 1b vertically erected at predetermined intervals on the upper surface of the lower frame 1a. And an upper frame 1c attached to the upper ends of these vertical frames 1b, 1b,... In parallel with the lower frame 1a. Each of the lower frame 1a, the vertical frame 1b, and the upper frame 1c is made of wood and is a square rod-shaped member having the same cross section. The framework 1 configured as described above functions as a skeleton of the fire-resistant wooden wall 10 and supports a gypsum board or the like adhered to the fire-resistant wooden wall 10 to partition a space and prevent a fire from spreading. It is.
[0013]
In the present embodiment, a plywood 1d is attached so as to cover the indoor side surface of the frame assembly 1 in order to increase rigidity. The space formed by the lower frame 1a, the vertical frame 1b, the upper frame 1c, and the plywood 1d is filled with a heat insulating material 1e.
[0014]
(2) First gypsum board 2
The first gypsum board 2 is a plate-like member having a predetermined thickness, and is disposed on the indoor side surface of the framed body 1, that is, in the present embodiment, on the indoor side surface of the plywood 1d. As the material, for example, a reinforced gypsum board (GB-S, JIS A 6913) can be used, and the gypsum board is fixed to the framework 1 with a gypsum board nail (JIS A 5508). The first gypsum board 2 contains water of crystallization, and when heat of a fire is transmitted through the aluminum sheet 3, the water of crystallization becomes steam, which hinders a rise in temperature and transmission of heat. That is, the first gypsum board 2 serves to protect the framework 1 from heat transmitted through the aluminum sheet 3. The “predetermined thickness” will be described later.
[0015]
Here, when the area of one gypsum board is smaller than the area of the framed body 1, a plurality of gypsum boards are butted on the same plane so as to cover the entire outer surface of the plywood 1d. , The first gypsum board 2 may be formed.
[0016]
(3) Aluminum sheet 3
The aluminum sheet 3 is a sheet-like member having a predetermined thickness, is disposed between the first gypsum board 2 and the second gypsum board 4, and adheres to the indoor side surface of the first gypsum board 2. It is stuck with the agent. The aluminum sheet 3 has a radiation insulation function, and plays a role of radiating heat of a fire and reducing heat transmitted to the first gypsum board 2. Thereby, since the temperature rise inside the refractory wooden wall 10 can be suppressed, it is possible to use a wooden frame. Further, the first gypsum board can be thinned.
In addition, it is desirable that the aluminum sheet 3 be stuck to the indoor side surface of the first gypsum board 2 without any gap. As the material of the aluminum sheet 3, it is desirable to use a material that conforms to the JIS standard (JIS H 4160).
[0017]
(4) Second gypsum board 4
The second gypsum board 4 is a plate-like member having a predetermined thickness, and is arranged on the indoor side surface of the aluminum sheet 3. As a material, as in the case of the first gypsum board 2, for example, a reinforced gypsum board (GB-S, JIS A 6913) can be used, and is fixed to the frame body 1 by gypsum board nails (JIS A 5508). ing. Further, the second gypsum board 4 is nailed to the first gypsum board 2 with staples, nails, and the like, whereby the first gypsum board 2, the aluminum sheet 3, and the second gypsum board 4 are adhered to each other. Sex has been enhanced. Thus, by disposing the second gypsum board 4 on the indoor side surface of the aluminum sheet 3, the aluminum sheet 3 is not directly exposed to the flame, and can sufficiently exhibit the radiation insulation function. it can. That is, the second gypsum board 4 not only changes the water of crystallization into water vapor to delay the transfer of heat to the aluminum sheet 3 but also protects the aluminum sheet 3 from flames and sufficiently exerts the radiation insulation function. Play a role.
[0018]
Here, similarly to the first gypsum board 2, when a plurality of gypsum boards are laid and the second gypsum board 4 is formed, the position where the gypsum boards abut each other, that is, the joint position is the first gypsum board. It is desirable not to overlap the joint position of the gypsum board 2.
Further, it is desirable that the joint portion of the second gypsum board 4 be finished smoothly with a joint treatment material. Specifically, it is desirable to apply a gypsum-based or calcium carbonate-based putty (JIS A 6914, application amount of 200 g / m or more) and affix a glass fiber tape to the surface.
[0019]
(5) Regarding “Predetermined Thickness” In order for the refractory wooden wall 10 configured as described above to satisfy the fire resistance performance under the Building Standards Law, it is desirable that the thickness of each component be as follows. That is, it is desirable that the thickness of the first gypsum board 2 be 15 mm or more, the thickness of the aluminum sheet 3 be 0.05 mm or more, and the thickness of the second gypsum board 4 be 21 mm or more. Further, the density of the aluminum sheet 3 is desirably 2.7 Mg / m ³ or more.
[0020]
As described above, an example of the preferred embodiment of the present invention has been described. However, the present invention is not limited to the embodiment, and can be appropriately changed without departing from the gist of the present invention.
[0021]
For example, the present embodiment has exemplified the case where the partition wall that separates the rooms has a fireproof structure. However, when the outer wall that separates the outside of the building from the room has a fireproof structure, the indoor side of the framework 1 is The first gypsum board 2, the aluminum sheet 3, and the second gypsum board 4 may be attached only to the surface of the frame 1, and an outer wall material or the like may be attached to the outside surface of the building of the framework 1.
[0022]
Further, in this embodiment, the plywood 1d is attached to the indoor side surface of the frame body 1, but a non-combustible material may be attached instead of the plywood 1d. Furthermore, the attachment of the plywood 1d may be omitted, and even when the first gypsum board 2 is directly attached to the framework 1, the fire resistance performance according to the Building Standard Law can be satisfied.
[0023]
Further, in this embodiment, a reinforced gypsum board (GB-S, JISA 6913) is used as a gypsum board, but another gypsum board having performance equivalent to this may be used.
[0024]
Further, in the present embodiment, when fixing the first and second gypsum boards 2 and 4, a gypsum board nail (JIS A 5508) is used. In addition, an SNF nail (JIS A 5508) and a cross hole are used. Wood screws (JIS B 1112), drilling tapping screws (JIS B 1125) and the like may be used.
[0025]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the wooden wall which satisfies the fire resistance performance in the Building Standard Act can be realized. Then, by applying such a fire-resistant wooden wall to various buildings, the scale and application of a wooden building can be greatly expanded, and it becomes possible to spread a wooden building.
[Brief description of the drawings]
FIG. 1 is a partially cutaway perspective view showing a refractory wooden wall which is an example of an embodiment of the present invention.
FIG. 2 is a partially cutaway perspective view showing a wooden wall of a conventional semi-refractory structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Refractory wooden wall 1 Frame assembly 1a Lower frame 1b Vertical frame 1c Upper frame 1d Plywood 1e Insulation material 2 First gypsum board 3 Aluminum sheet 4 Second gypsum board 100 Conventional wooden wall frame assembly 101 Lower frame 102 Vertical frame 103 Upper frame 110 Conventional plaster board of wooden wall 111 First plaster board 112 Second plaster board

Claims (1)

A wooden frame assembly configured by combining an upper frame, a lower frame, and a vertical frame,
A first gypsum board adhered to the indoor side surface of the framework;
An aluminum sheet adhered to the indoor side surface of the first gypsum board;
A second gypsum board adhered to the indoor side surface of the aluminum sheet. A fire-resistant wooden wall.

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